水銀 すいぎん圧入 あつにゅうではありませんでした
suigin'atsunyūdewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 水銀圧入

1. Was not mercury-pressurized.; Was not a mercury insertion.

Past/Perfective
Negative
Polite
Formal Register